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Planning application

42 Rhymney Street Cathays Cardiff CF24 4DG

Granted Cardiff 26/00898/FUL Full Planning Permission

Works: Extension Loft or dormer Demolition Domestic

Read from the description, not a valuation. How we read the register

Permission granted. Work must normally begin within five years of the decision or the permission lapses.

Proposal

Demolition and partial reduction of rear extension; erection of rear dormer roof extension; and internal alterations to facilitate the change of use from a dwellinghouse (C3) to a 6-bedroom House in Multiple Occupation (C4)

As published by the council, reference 26/00898/FUL

Application record

Reference
26/00898/FUL
Type
Full Planning Permission
Status
Decided
Decision
Granted As published: Permission Granted
Received
6 May 2026
Validated
6 May 2026
Decided
14 Aug 2026
Ward
CATHAYS
Decision by
Delegated to Group Leader
Postcode
CF24 4DG

Timeline

Dates from the published record

  1. 6 May 2026

    Received by Cardiff

  2. 22 Jul 2026

    Added to PlanIndex

  3. 13 Aug 2026

    Status changed to Awaiting decision

    Previously Registered.

  4. 14 Aug 2026

    Decision issued: Permission Granted

Who's behind it

Company information only, from the register and Companies House

HAFREN DESIGNS Agent, a design practice

58 applications on PlanIndex · across 4 councils · 94% granted

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Documents

Plans, drawings, consultee responses and the officer's report

8 documents on file for this application

A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.

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What this grant of permission means

Cardiff granted permission on 14 August 2026, subject to any conditions on the decision notice. Work must normally begin within five years or the permission lapses. More in our guide to what happens after a planning decision.

About full applications

A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.

Nearby applications

Within 0.3 miles

  • 51 Rhymney Street Cathays Cardiff CF24 4DH

    25/01660/FUL Submitted 16 Jul 2025 50 yards away

    Ground floor rear extension plus rear dormer loft extension and conversion to class C4 House in Multiple Occupation.

    Granted Full applications Extension Loft or dormer 9 docs

  • 18 Rhymney Street Cathays Cardiff CF24 4DF

    23/00699/CLD Submitted 27 Mar 2023 50 yards away

    Single Storey Rear Extension and Rear Dormer Roof Extension

    Granted Lawful development Extension Loft or dormer 7 docs
    Small domestic

  • 115 Richmond Road Roath Cardiff CF24 3BS

    26/00256/FUL Submitted 9 Feb 2026 50 yards away

    Retention of store and garage building with internal alterations.

    Refused Full applications 10 docs

  • 115 Richmond Road Roath Cardiff CF24 3BS

    22/02985/FUL Submitted 15 Dec 2022 50 yards away

    Conversion from 3 to 5 flats with ground and first floor rear & side extensions plus rear dormer and new garage

    Granted Full applications New dwelling Extension +1 13 docs
    Several homes

  • 55 Rhymney Street Cathays Cardiff CF24 4DH

    26/00836/FUL Submitted 28 Apr 2026 50 yards away

    Change of Use to Class C4 House in Multiple Occupation with rear and side extensions and a rear dormer roof extension.

    Granted Full applications Extension Loft or dormer 8 docs

  • 108 Salisbury Road Cathays Cardiff CF24 4AE

    21/01836/MNR Submitted 22 Jul 2021 50 yards away

    GROUND AND FIRST FLOOR REAR EXTENSIONS, REAR DORMER ROOF EXTENSION AND SHOPFRONT ALTERATIONS WITH ASSOCIATED EXTERNAL WORKS

    Granted Full applications Extension Loft or dormer +1 6 docs

In Cardiff

  • 26/01337/FUL Granted

    37 Wyeverne Road Cathays Cardiff CF24 4BG

    Extensions and alterations and change of use from dwelling (C3) to House in Multiple Occupation (C4) (HMO).

    Received 26 Jun, published by the council 22 Jul 2026 Full applications
  • 26/01728/FUL Granted

    Unit 7b Cardiff Industrial Park Pennine Close Llanishen Cardiff CF14 5DN

    Installation of 5 no. external air source heat pump units

    Received 13 Aug, published by the council 24 Aug 2026 Full applications
  • 26/01729/FUL Granted

    Unit 7b Cardiff Industrial Park Pennine Close Llanishen Cardiff CF14 5DN

    Replacement roller shutter.

    Received 13 Aug, published by the council 24 Aug 2026 Full applications
  • 26/01216/FUL Granted

    4 Callaghan Square Butetown Cardiff CF10 5BT

    Internal and external alterations to an existing office building at ground floor and part first floor

    Received 12 Jun, published by the council 22 Jul 2026 Full applications
  • 26/02099/FUL Awaiting decision

    20 Janet Street Splott Cardiff CF24 2BD

    Proposed conversion of dwelling to form two flats

    Received 5 Oct, published by the council 9 Oct 2026 Full applications